def _rlptx_to_txobject(self, rlp_data: bytes) -> TxObject:
"""
Transform an rlp encoded byte array transaction to a transaction object
"""
# decode the rlp
raw = rlp.decode(rlp_data)
tag = _int_decode(raw[0])
vsn = _int_decode(raw[1])
# TODO: verify that the schema is there
descriptor = tx_descriptors.get((tag, vsn))
if descriptor is None:
# the transaction is not defined
raise TypeError(f"Unknown transaction tag/version: {tag}/{vsn}")
schema = descriptor.get("schema")
tx_data = {"tag": tag, "type": idf.TRANSACTION_TAG_TO_TYPE.get(tag)}
for label, fn in schema.items():
if fn.field_type == _INT:
tx_data[label] = _int_decode(raw[fn.index])
if fn.field_type == _ID:
tx_data[label] = _id_decode(raw[fn.index])
elif fn.field_type == _ENC:
tx_data[label] = encode(fn.encoding_prefix, raw[fn.index])
elif fn.field_type == _OTTL_TYPE:
ttl_type = _int_decode(raw[fn.index])
tx_data[fn.index] = idf.ORACLE_TTL_TYPES_REV.get(ttl_type)
elif fn.field_type == _SG:
# signatures are always a list
tx_data[label] = [
encode(idf.SIGNATURE, sg) for sg in raw[fn.index]
]
elif fn.field_type == _VM_ABI:
vml = len(raw[fn.index])
# vm/abi are encoded in the same 32bit length block
tx_data["vm_version"] = _int_decode(raw[fn.index][0:vml - 2])
tx_data["abi_version"] = _int_decode(raw[fn.index][vml - 2:])
elif fn.field_type == _BIN:
# this are byte arrays
tx_data[label] = _binary_decode(raw[fn.index],
data_type=fn.data_type)
elif fn.field_type == _PTR:
# this are name pointers
tx_data[label] = [{
"key": _binary_decode(p[0], data_type=str),
"id": _id_decode(p[1])
} for p in raw[fn.index]]
elif fn.field_type == _TX:
# this can be raw or tx object
tx_data[label] = self._rlptx_to_txobject(raw[fn.index])
# re-encode the decode object
compute_hash = True if tag == idf.OBJECT_TAG_SIGNED_TRANSACTION else False
return self._txdata_to_txobject(tx_data,
descriptor,
compute_hash=compute_hash)
def encode_signed_transaction(self, transaction, signature):
"""prepare a signed transaction message"""
tag = bytes([idf.OBJECT_TAG_SIGNED_TRANSACTION])
vsn = bytes([idf.VSN])
encoded_signed_tx = encode_rlp(idf.TRANSACTION, [tag, vsn, [signature], transaction])
encoded_signature = encode(idf.SIGNATURE, signature)
return encoded_signed_tx, encoded_signature
def tx_spend(self, sender_id, recipient_id, amount, payload, fee, ttl,
nonce) -> TxObject:
"""
create a spend transaction
:param sender_id: the public key of the sender
:param recipient_id: the public key of the recipient
:param amount: the amount to send
:param payload: the payload associated with the data
:param fee: the fee for the transaction
:param ttl: the absolute ttl of the transaction
:param nonce: the nonce of the transaction
"""
# use internal endpoints transaction
body = dict(
tag=idf.OBJECT_TAG_SPEND_TRANSACTION,
version=idf.VSN,
recipient_id=recipient_id,
amount=amount,
fee=fee,
sender_id=sender_id,
payload=encode(idf.BYTE_ARRAY, payload),
ttl=ttl,
nonce=nonce,
)
return self._build_txobject(body)
def encode_signed_transaction(self, transaction, signature):
"""prepare a signed transaction message"""
tag = bytes([OBJECT_TAG_SIGNED_TRANSACTION])
vsn = bytes([VSN])
encoded_signed_tx = hashing.encode_rlp(
"tx", [tag, vsn, [signature], transaction])
encoded_signature = hashing.encode("sg", signature)
return encoded_signed_tx, encoded_signature
def _txdata_to_txobject(self, data: dict, descriptor: dict, metadata: dict = {}, compute_hash=True) -> TxObject:
# initialize the right data size
# this is PYTHON to POSTBODY
schema = descriptor.get("schema", [])
raw_data = [0] * (len(schema) + 1) # the +1 is for the tag
# set the tx tag first
raw_data[0] = _int(data.get("tag"))
# parse fields and encode them
for label, fn in schema.items():
if fn.field_type == _INT:
raw_data[fn.index] = _int(data.get(label, 0))
elif fn.field_type == _ID:
raw_data[fn.index] = _id(data.get(label))
elif fn.field_type == _ENC:
raw_data[fn.index] = decode(data.get(label))
elif fn.field_type == _OTTL_TYPE:
raw_data[fn.index] = _int(idf.ORACLE_TTL_TYPES.get(data.get(label)))
elif fn.field_type == _SG:
# signatures are always a list
raw_data[fn.index] = [decode(sg) for sg in data.get(label, [])]
elif fn.field_type == _VM_ABI:
# vm/abi are encoded in the same 32bit length block
raw_data[fn.index] = _int(data.get("vm_version")) + _int(data.get("abi_version"), 2)
elif fn.field_type == _BIN:
# this are binary string #TODO: may be byte array
raw_data[fn.index] = _binary(data.get(label))
elif fn.field_type == _PTR:
# this are name pointers
raw_data[fn.index] = [[_binary(p.get("key")), _id(p.get("id"))] for p in data.get(label, [])]
elif fn.field_type == _TX:
# this can be raw or tx object
tx = data.get(label).tx if hasattr(data.get(label), "tx") else data.get(label)
raw_data[fn.index] = decode(tx)
# encode the transaction in rlp
rlp_tx = rlp.encode(raw_data)
# encode the tx in base64
rlp_b64_tx = encode(idf.TRANSACTION, rlp_tx)
# copy the data before modifying
tx_data = copy.deepcopy(data)
# build the tx object
txo = TxObject(
data=namedtupled.map(tx_data, _nt_name="TxData"),
tx=rlp_b64_tx,
)
# compute the tx hash
if compute_hash:
txo.hash = hash_encode(idf.TRANSACTION_HASH, rlp_tx)
# copy the metadata if exists or initialize it if None
tx_meta = copy.deepcopy(metadata) if metadata is not None else {}
# compute the minimum fee
if descriptor.get("fee") is not None:
tx_meta["min_fee"] = self.compute_min_fee(data, descriptor, raw_data)
# only set the metadata if it is not empty
txo.set_metadata(tx_meta)
return txo
def signed_tx_to_obj(tx_str):
tx = hashing.decode_rlp(tx_str)
if hashing._int_decode(tx[0]) != 11:
raise Exception("invalid tag")
if len(tx) != 4:
raise Exception("invalid tx")
return transactions._tx_native(op=transactions.UNPACK_TX,
tx=hashing.encode("tx", tx[3]))
def sign_transaction(self, transaction: TxObject, metadata: dict = None) -> str:
"""
Sign, encode and compute the hash of a transaction
:param tx: the TxObject to be signed
:param metadata: additional data to include in the output of the signed transaction object
:return: encoded_signed_tx, encoded_signature, tx_hash
"""
# get the transaction as byte list
tx_raw = decode(transaction.tx)
# sign the transaction
signature = self.account.sign(_binary(self.network_id) + tx_raw)
# pack and encode the transaction
return encode(idf.SIGNATURE, signature)
def __init__(self, signing_key, verifying_key, **kwargs):
# distinguish from poa / ga
# TODO: handle the case that they are not set
self.nonce = kwargs.get("nonce", 0)
self.balance = kwargs.get("balance", 0)
self.kind = kwargs.get("kind", ACCOUNT_KIND_BASIC)
self.contract_id = kwargs.get("contract_id")
self.auth_fun = kwargs.get("auth_fun")
self.address = kwargs.get("id")
self.signing_key = signing_key
self.verifying_key = verifying_key
if verifying_key is not None:
pub_key = self.verifying_key.encode(encoder=RawEncoder)
self.address = hashing.encode(ACCOUNT_ID, pub_key)
def sign_transaction(self,
transaction: TxObject,
metadata: dict = None) -> str:
"""
Sign, encode and compute the hash of a transaction
Args:
tx (TxObject): the TxObject to be signed
Returns:
the encoded and prefixed signature
"""
# get the transaction as byte list
tx_raw = decode(transaction.tx)
# sign the transaction
signature = self.account.sign(_binary(self.network_id) + tx_raw)
# pack and encode the transaction
return encode(idf.SIGNATURE, signature)
def test_hashing_base58_encode():
inputs = [
{
"data": "test".encode("utf-8"),
"prefix": "tt",
"hash": "LUC1eAJa5jW",
"match": True,
"raise_error": False,
},
{
"data": "test".encode("utf-8"),
"prefix": "tt",
"hash": "LUC1eAJa",
"match": False,
"raise_error": True,
},
{
"data": "aeternity".encode("utf-8"),
"prefix": "aa",
"hash": "97Wv2fcowb3y3qVnDC",
"match": True,
"raise_error": False,
},
]
for i in inputs:
try:
h = hashing._base58_encode(i.get("data"))
assert (h == i.get("hash")) is i.get("match")
e = hashing.encode(i.get("prefix"), i.get("data"))
assert (e == f'{i.get("prefix")}_{i.get("hash")}') is i.get("match")
o = hashing._base58_decode(i.get("hash"))
assert (o == i.get("data")) is i.get("match")
except Exception as e:
assert i.get("raise_error") is True
def test_evm_encode_calldata():
contract = EPOCH_CLI.Contract(aer_identity_contract, abi=Contract.EVM)
result = contract.encode_calldata('main', '1')
assert result is not None
assert result == hashing.encode('cb', 'main1')
def __init__(self, signing_key, verifying_key):
self.signing_key = signing_key
self.verifying_key = verifying_key
pub_key = self.verifying_key.encode(encoder=RawEncoder)
self.address = hashing.encode("ak", pub_key)
def _tx_native(op, **kwargs):
def std_fee(tx_raw, fee_idx, base_gas_multiplier=1):
# calculates the standard minimum transaction fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def contract_fee(tx_raw, fee_idx, gas, base_gas_multiplier=1):
# estimate the contract creation fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + gas + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def oracle_fee(tx_raw, fee_idx, relative_ttl):
# estimate oracle fees
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
fee = (defaults.BASE_GAS + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE)
fee += math.ceil(32000 * relative_ttl / math.floor(60 * 24 * 365 / defaults.KEY_BLOCK_INTERVAL))
return fee * defaults.GAS_PRICE
def build_tx_object(tx_data, tx_raw, fee_idx, min_fee):
if tx_data.get("fee") < min_fee:
tx_native[fee_idx] = _int(min_fee)
tx_data["fee"] = min_fee
tx_encoded = encode_rlp(idf.TRANSACTION, tx_native)
tx = dict(
data=tx_data,
tx=tx_encoded,
hash=TxBuilder.compute_tx_hash(tx_encoded),
)
return namedtupled.map(tx, _nt_name="TxObject")
# prepare tag and version
if op == PACK_TX:
tag = kwargs.get("tag", 0)
vsn = kwargs.get("vsn", 1)
tx_data = kwargs
elif op == UNPACK_TX:
tx_native = decode_rlp(kwargs.get("tx", []))
tag = _int_decode(tx_native[0])
else:
raise Exception("Invalid operation")
# check the tags
if tag == idf.OBJECT_TAG_SPEND_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("sender_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("recipient_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("fee")), # index 5
_int(kwargs.get("ttl")),
_int(kwargs.get("nonce")),
_binary(kwargs.get("payload"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
sender_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
recipient_id=encode(idf.ACCOUNT_ID, tx_native[3][1:]),
amount=_int_decode(tx_native[4]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
nonce=_int_decode(tx_native[7]),
payload=_binary_decode(tx_native[8]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_PRECLAIM_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_COMMITMENT, kwargs.get("commitment_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
commitment_id=encode(idf.COMMITMENT, tx_native[4][1:]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_CLAIM_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
decode(kwargs.get("name")),
_binary(kwargs.get("name_salt")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=_binary_decode(tx_native[4], str),
name_salt=_binary_decode(tx_native[5], int),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_UPDATE_TRANSACTION:
tx_field_fee_index = 8
if op == PACK_TX: # pack transaction
# first asseble the pointers
def pointer_tag(pointer):
return {
"account_pubkey": idf.ID_TAG_ACCOUNT,
"oracle_pubkey": idf.ID_TAG_ORACLE,
"contract_pubkey": idf.ID_TAG_CONTRACT,
"channel_pubkey": idf.ID_TAG_CHANNEL
}.get(pointer.get("key"))
ptrs = [[_binary(p.get("key")), _id(pointer_tag(p), p.get("id"))] for p in kwargs.get("pointers", [])]
# then build the transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_int(kwargs.get("name_ttl")),
ptrs,
_int(kwargs.get("client_ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
name_ttl=_int_decode(tx_native[5]),
pointers=[], # TODO: decode pointers
client_ttl=_int_decode(tx_native[7]),
fee=_int_decode(tx_native[8]),
ttl=_int_decode(tx_native[9]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_TRANSFER_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("recipient_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
recipient_id=encode(idf.ACCOUNT_ID, tx_native[5][1:]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_REVOKE_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CONTRACT_CREATE_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("owner_id")),
_int(kwargs.get("nonce")),
_binary(decode(kwargs.get("code"))),
_int(kwargs.get("vm_version")) + _int(kwargs.get("abi_version"), 2),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("deposit")),
_int(kwargs.get("amount")),
_int(kwargs.get("gas")),
_int(kwargs.get("gas_price")),
_binary(decode(kwargs.get("call_data"))),
]
# TODO: verify the fee caluclation for the contract
min_fee = contract_fee(tx_native, tx_field_fee_index, kwargs.get("gas"), base_gas_multiplier=5)
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
owner_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
code=encode(idf.BYTECODE, tx_native[4][1:]),
vm_version=_int_decode(tx_native[5][0:vml - 2]),
abi_version=_int_decode(tx_native[5][vml - 2:]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
deposit=_int_decode(tx_native[8]),
amount=_int_decode(tx_native[9]),
gas=_int_decode(tx_native[10]),
gas_price=_int_decode(tx_native[11]),
call_data=encode(idf.BYTECODE, tx_native[12][1:]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CONTRACT_CALL_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("caller_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_CONTRACT, kwargs.get("contract_id")),
_int(kwargs.get("abi_version")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("amount")),
_int(kwargs.get("gas")),
_int(kwargs.get("gas_price")),
_binary(decode(kwargs.get("call_data"))),
]
min_fee = contract_fee(tx_native, tx_field_fee_index, kwargs.get("gas"), base_gas_multiplier=30)
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
caller_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
contract_id=encode(idf.CONTRACT_ID, tx_native[4][1:]),
abi_version=_int_decode(tx_native[5]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
amount=_int_decode(tx_native[8]),
gas=_int_decode(tx_native[9]),
gas_price=_int_decode(tx_native[10]),
call_data=encode(idf.BYTECODE, tx_native[11][1:]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CHANNEL_CREATE_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("initiator")),
_int(kwargs.get("initiator_amount")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("responder")),
_int(kwargs.get("responder_amount")),
_int(kwargs.get("channel_reserve")),
_int(kwargs.get("lock_period")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
# _[id(delegate_ids)], TODO: handle delegate ids
_binary(kwargs.get("state_hash")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 9
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_DEPOSIT_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_binary(kwargs.get("state_hash")),
_int(kwargs.get("round")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_WITHDRAW_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("to_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_binary(kwargs.get("state_hash")),
_int(kwargs.get("round")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_CLOSE_MUTUAL_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("initiator_amount_final")),
_int(kwargs.get("responder_amount_final")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_CLOSE_SOLO_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
# _poi(kwargs.get("poi")), TODO: implement support for _poi
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SLASH_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
# _poi(kwargs.get("poi")), TODO: implement support for _poi
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SETTLE_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("initiator_amount_final")),
_int(kwargs.get("responder_amount_final")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SNAPSHOT_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_FORCE_PROGRESS_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
_int(kwargs.get("round")),
_binary(kwargs.get("update")),
_binary(kwargs.get("state_hash")),
# _trees(kwargs.get("offchain_trees")), TODO: implement support for _trees
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 9
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_ORACLE_REGISTER_TRANSACTION:
tx_field_fee_index = 9
if op == PACK_TX: # pack transaction
oracle_ttl = kwargs.get("oracle_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_binary(kwargs.get("query_format")),
_binary(kwargs.get("response_format")),
_int(kwargs.get("query_fee")),
_int(0 if oracle_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(oracle_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("vm_version")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, oracle_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
query_format=_binary_decode(tx_native[4]),
response_format=_binary_decode(tx_native[5]),
query_fee=_int_decode(tx_native[6]),
oracle_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[7]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[8]),
),
fee=_int_decode(tx_native[9]),
ttl=_int_decode(tx_native[10]),
vm_version=_int_decode(tx_native[11]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_QUERY_TRANSACTION:
tx_field_fee_index = 11
if op == PACK_TX: # pack transaction
query_ttl = kwargs.get("query_ttl", {})
response_ttl = kwargs.get("response_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("sender_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_binary(kwargs.get("query")),
_int(kwargs.get("query_fee")),
_int(0 if query_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(query_ttl.get("value")),
_int(0 if response_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(response_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, query_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
sender_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
oracle_id=encode(idf.ORACLE_ID, tx_native[4][1:]),
query=_binary_decode(tx_native[5]),
query_fee=_int_decode(tx_native[6]),
query_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[7]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[8]),
),
response_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[9]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[10]),
),
fee=_int_decode(tx_native[11]),
ttl=_int_decode(tx_native[12]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_RESPONSE_TRANSACTION:
tx_field_fee_index = 8
if op == PACK_TX: # pack transaction
response_ttl = kwargs.get("response_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_int(kwargs.get("nonce")),
decode(kwargs.get("query_id")),
_binary(kwargs.get("response")),
_int(0 if response_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(response_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, response_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
oracle_id=encode(idf.ORACLE_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
query_id=encode(idf.ORACLE_QUERY_ID, tx_native[4][1:]),
response=_binary(tx_native[5]),
response_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[6]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[7]),
),
fee=_int_decode(tx_native[8]),
ttl=_int_decode(tx_native[9]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_EXTEND_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
oracle_ttl = kwargs.get("oracle_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_int(kwargs.get("nonce")),
_int(0 if oracle_ttl.get("type", {}) == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(oracle_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, oracle_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
oracle_id=encode(idf.ORACLE_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
oracle_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[4]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[5]),
),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
else:
raise UnsupportedTransactionType(f"Unusupported transaction tag {tag}")
def _test_oracle_response(query, expected):
r = query.get_response_object()
assert r.oracle_id == query.oracle_id
assert r.id == query.id
assert r.response == hashing.encode("or", expected)
def __init__(self, signing_key, verifying_key):
self.signing_key = signing_key
self.verifying_key = verifying_key
pub_key = self.verifying_key.encode(encoder=RawEncoder)
self.address = hashing.encode(ACCOUNT_ID, pub_key)
self.nonce = 0
def _encode_name(cls, name):
if isinstance(name, str):
name = name.encode('ascii')
return hashing.encode('nm', name)
